MDT 2010 / Windows 7, driver ranking problem for Realtek HD Audio
I've just come across an unexpected problem while setting up drivers for a migration to Windows 7 (32bit Enterprise) via MDT2010. On the first model of computer that i'm working on it seems impossible to install an unsigned driver from Realtek due to it always having a lower driver ranking than the signed Microsoft HD Audio driver (which doesn't seem to be able to actual produce any sound). The deployment process will install unsigned drivers without any problem as the Radeon graphics driver was unsigned and installed with no problems.
Is there any way to allow unsigned drivers to have an equal ranking in the selection process so that newer driver / best match would be installed rather than a signed driver that doesn't actually work? Or am i missing something else for the Microsoft HD Audio driver to function properly?